.travis.yml

# Use new container infrastructure to enable caching
sudo: false

# Do not choose a language; we provide our own build tools.
language: generic

# Caching so the next build will be fast too.
cache:
  directories:
  - $HOME/.stack

matrix:
  include:

  - env: STACK_URL="https://github.com/commercialhaskell/stack/releases/download/v1.5.1/stack-1.5.1-linux-x86_64.tar.gz"

  - env: STACK_URL="https://github.com/commercialhaskell/stack/releases/download/v1.6.1/stack-1.6.1-linux-x86_64.tar.gz"

before_install:
# Using compiler above sets CC to an invalid value, so unset it
- unset CC
# Download and unpack the stack executable
- export PATH=$HOME/.local/bin:$PATH
- mkdir -p ~/.local/bin
- travis_retry curl -L "${STACK_URL}" | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'
- |
  stack setup

  # Use the more reliable S3 mirror of Hackage
  mkdir -p $HOME/.cabal
  echo 'remote-repo: hackage.haskell.org:http://hackage.fpcomplete.com/' > $HOME/.cabal/config
  echo 'remote-repo-cache: $HOME/.cabal/packages' >> $HOME/.cabal/config
- stack --version
- stack upgrade
- stack upgrade --git --git-branch stable

install:
- stack --no-terminal --install-ghc build

script:
- stack --no-terminal --install-ghc test